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farther farthest further furthest
six Room ;second Room six ;the second Room six; two floor the room six ; the second
three third the third the three
five fifth the fifth the five
twelve twelves twelfth twelveth
at； on to； at on； in of； to
nineth, under ninth, under nineth, below ninth, below
does, on do, on do, in is, in
which floor did he live which floor he lives on which floor he lived on which floor he lived
nine：fifth nine；five ninth；five fifth；nine
on;two on;second to;second in;two.
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